diff --git a/hyphenate/hyphenate/info.rkt b/hyphenate/hyphenate/info.rkt
index 36b9b109..f67642ca 100644
--- a/hyphenate/hyphenate/info.rkt
+++ b/hyphenate/hyphenate/info.rkt
@@ -1,3 +1,4 @@
 #lang info
 (define scribblings '(("scribblings/hyphenate.scrbl" ())))
 (define compile-omit-paths '("tests.rkt"))
+(define post-install-collection "post-installer.rkt")
\ No newline at end of file
diff --git a/hyphenate/hyphenate/post-installer.rkt b/hyphenate/hyphenate/post-installer.rkt
new file mode 100644
index 00000000..90fafc35
--- /dev/null
+++ b/hyphenate/hyphenate/post-installer.rkt
@@ -0,0 +1,8 @@
+#lang racket/base
+(provide (all-defined-out))
+
+(define (post-installer home-dir)
+  (for ([mod '(hyphenate/us hyphenate/fr)])
+    (displayln (format "running post-installer in ~a" mod))
+    (define proc (dynamic-require mod 'post-installer))
+    (proc home-dir)))
\ No newline at end of file
diff --git a/hyphenate/hyphenate/private/bootstrap.rkt b/hyphenate/hyphenate/private/bootstrap.rkt
index 0e658f27..7ac68e61 100644
--- a/hyphenate/hyphenate/private/bootstrap.rkt
+++ b/hyphenate/hyphenate/private/bootstrap.rkt
@@ -4,6 +4,7 @@
          sugar/define
          racket/contract
          racket/file
+         racket/fasl
          (only-in xml xexpr/c)
          (prefix-in core: hyphenate/private/core))
 
@@ -51,8 +52,8 @@
   (unless (and (file-exists? cache-path)
                (> (file-or-directory-modify-seconds cache-path)
                   (file-or-directory-modify-seconds module-path)))
-    (write-to-file (dynamic-require module-path id-sym) cache-path #:exists 'replace))
-  (file->value cache-path))
+    (s-exp->fasl (dynamic-require module-path id-sym) (open-output-file cache-path #:exists 'replace)))
+  (fasl->s-exp (open-input-file cache-path)))
 
 (define-syntax (mb stx)
   (syntax-case stx () 
@@ -67,12 +68,15 @@
                      [PATTERNS-ID 'patterns]
                      [EXCEPTIONS-ID 'exceptions])
          #'(#%module-begin
-             (define PATTERNS-ID (load-from-cache-if-possible PATTERNS-PATH PATTERN-CACHE-PATH 'PATTERNS-ID))
-             ;; a file-cached hash is immutable, so convert it
-             (define EXCEPTIONS-ID (make-hash (hash->list (load-from-cache-if-possible EXCEPTIONS-PATH EXCEPTIONS-CACHE-PATH 'EXCEPTIONS-ID))))
-             (define+provide+safe hyphenate
-               hyphenate/c
-               (make-hyphenate-function PATTERNS-ID EXCEPTIONS-ID))
-             (define+provide+safe unhyphenate
-               unhyphenate/c
-               (make-unhyphenate-function)))))]))
\ No newline at end of file
+            (define PATTERNS-ID (load-from-cache-if-possible PATTERNS-PATH PATTERN-CACHE-PATH 'PATTERNS-ID))
+            ;; a file-cached hash is immutable, so convert it
+            (define EXCEPTIONS-ID (make-hash (hash->list (load-from-cache-if-possible EXCEPTIONS-PATH EXCEPTIONS-CACHE-PATH 'EXCEPTIONS-ID))))
+            (define+provide (post-installer home-dir)
+              (load-from-cache-if-possible PATTERNS-PATH PATTERN-CACHE-PATH 'PATTERNS-ID)
+              (load-from-cache-if-possible EXCEPTIONS-PATH EXCEPTIONS-CACHE-PATH 'EXCEPTIONS-ID))
+            (define+provide+safe hyphenate
+              hyphenate/c
+              (make-hyphenate-function PATTERNS-ID EXCEPTIONS-ID))
+            (define+provide+safe unhyphenate
+              unhyphenate/c
+              (make-unhyphenate-function)))))]))
\ No newline at end of file